Granted Patent
Utility
US 4,656,704 · App. 06/811,746
Automatic collar separation
Inventors:
Robert H. Best, Vernon T. Daniel
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Dec 20, 1985
Inventors
Robert H. Best
Vernon T. Daniel
Assignee (at issue)
Burlington Industries LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.